Strings María's routine at school is altered by the arrival of a very special child. Soon, they become close friends. Details Casts Videos Galleries Posters Title Strings Release Date 2013-11-15 Runtime 00 Hours 10 Minutes Genres Animation Drama Family Production Companies La Fiesta Production Countries Spain Miriam Martín... María (voice)... Belén Rueda... Maestra (voice)... María Temprado... Amiga de María (voice)... Blanca Formáriz... María adulta (voice)... Estefanía Nussio... Asistente social (voice)... Cuerdas - Making of (Behind the Scenes) Cuerdas Trailer 1 (Trailer) "Cuerdas" trailer. (Teaser) Original Size (1920x1080) Original Size (1280x720) Original Size (1280x720) Original Size (900x1350)